@misc{indiciae6224312c88a2,
  title = {Acquisition and extinction of problem-solving set.},
  author = {R A GARDNER and W N RUNQUIST},
  year = {1958},
  doi = {10.1037/h0040619},
  url = {https://pubmed.ncbi.nlm.nih.gov/13513948/},
  note = {Source identifier: 13513948}
}